B
    nôb\å  ã               @   s˜  d Z ddlZddlZddlZddlZddlZddlZddlmZm	Z	 edkZ
ddlmZ dZdd„ Ze d	¡Zd dd„Zd!dd„Ze ¡ Zg fdd„ZG dd„ deƒZeƒ Zedkr”ejdks”edƒ dZe ejej¡Ze  d¡ e !ej"ej#d¡ e $e¡ e %d¡ e ejej¡Z&e& 'e¡ e& (d )d¡¡ e *¡ \Z+Z,ede+ -d¡e,f ƒ edƒ ee&dƒ edee+ƒ ƒ e& .¡  e .¡  edƒ dS )"z,BSD socket interface communication utilitiesé    N)ÚDEBUGÚSTDERRé   )Úpickleé   c          
   G   s^   xXy||Ž S  | k
rT } z,t jdkr,tjntj}|jd |krBw‚ W dd}~X Y qX qW dS )z?Retry to execute function, ignoring EINTR error (interruptions)Úntr   N)ÚosÚnameÚerrnoZWSAEINTRZEINTRÚargs)ÚerrorZfunr   ÚeZeintr© r   ú5lib/python3.7/site-packages/spyder/utils/bsdsocket.pyÚtemp_fail_retry   s    r   ÚlFc             C   sX   |r
|}nt  |t¡}t dt|ƒ¡| }t|ƒ}x |dkrR|ttj| j	|ƒ8 }q4W dS )zWrite *data* to socket *sock*r   r   N)
r   ÚdumpsÚPICKLE_HIGHEST_PROTOCOLÚstructZpackÚlenr   Úsocketr   Úsend)ÚsockÚdataZalready_pickledZ	sent_dataZnsendr   r   r   Úwrite_packet*   s    
r   c          	   C   s&  |   |¡ d\}}zÄyŽtjdkr^|  t¡}t d|¡\}d}xbt|ƒ|k rZ||  |¡7 }q>W nBtt	j
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rº   ‚ Y n t	j
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rÒ   d}Y nX W d|   d¡ X |dk	r"y
t |¡S  tk
r    trtjtd dS X dS )zO
    Read data from socket *sock*
    Returns None if something went wrong
    )NNr   r   ó    N)Úfile)Z
settimeoutr   r	   ÚrecvÚSZr   Zunpackr   r   r   r   ZMSG_WAITALLÚtimeoutr   ÚloadsÚ	ExceptionÚDEBUG_EDITORÚ	tracebackÚ	print_excr   )r   r   Zdlenr   Zdatalenr   r   r   Úread_packet6   s6    







r%   c             C   sB   z2t  ¡  t| |ƒ x|D ]}t| |ƒ qW t| ƒS t  ¡  X dS )zCommunicate with monitorN)ÚCOMMUNICATE_LOCKÚacquirer   r%   Úrelease)r   ZcommandZsettingsZoptionr   r   r   Úcommunicated   s    

r)   c               @   s   e Zd ZdS )ÚPacketNotReceivedN)Ú__name__Ú
__module__Ú__qualname__r   r   r   r   r*   ‰   s   r*   Ú__main__r   z.-- Testing standard Python socket interface --)z	127.0.0.1i'  é   zdata to be catchedzutf-8z..got "%s" from %si   z1-- Testing BSD socket write_packet/read_packet --za tiny piece of dataz..got "%s" from read_packet()z-- Done.)F)N)/Ú__doc__r   r   r   Z	threadingr
   r#   Zspyder.config.baser   r   r"   Zspyder.py3compatr   r   r   Zcalcsizer   r   r%   ZLockr&   r)   Úobjectr*   ZPACKET_NOT_RECEIVEDr+   r	   ÚprintZaddressZAF_INETZSOCK_STREAMZserverZsetblockingZ
setsockoptZ
SOL_SOCKETZSO_REUSEADDRZbindZlistenZclientZconnectr   ÚencodeZacceptZaccsockZaddrr   Úcloser   r   r   r   Ú<module>   sL   


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



	
